package com.atguigu.classes.OOPfour;

/**
 * @program: IDEAcode
 * @description:
 * @author: Mr.zjx
 * create: 2021-07-13-19-29
 **/
public class Computer {
    //USB usb = new Mouse();
    public void usingUSB(USB usb){
        usb.powerOn();
        usb.poweroff();
    }
}
